#include "str.h"

unsigned int str_rchr(s,c)
register char *s;
int c;
{
 register char ch;
 register char *t;
 register char *u;

 ch = c;
 t = s;
 u = 0;
 for (;;)
  {
   if (!*t) break; if (*t == ch) u = t; ++t;
   if (!*t) break; if (*t == ch) u = t; ++t;
   if (!*t) break; if (*t == ch) u = t; ++t;
   if (!*t) break; if (*t == ch) u = t; ++t;
  }
 if (!u) u = t;
 return u - s;
}